*{
	margin: 0;
	padding: 0;
}
body{
	font: 300 14px "HelveticaNeue-Light","Helvetica Neue Light","Helvetica Neue",Helvetica,Arial,"Lucida Grande",sans-serif;
	width: 900px;
	margin: 50px auto;
	background: #eee;
	color: #333;
	line-height: 1.5;
}
a{
	color: #258fb8;
	text-decoration: none;
}
a:hover{
	text-decoration: underline;
}
#tabs li{
	background: #ddd;
	border: 1px solid #ccc;
	border-bottom: none;
	display: inline-block;
	margin-right: 5px;
	padding: 5px 10px;
	color: #999;
	cursor: pointer;
}
#tabs li:hover{
	color: #666;
}
#tabs li.enable{
	border-bottom: 1px solid #ddd;
	margin-bottom: -1px;
	color: #333;
}
#contents{
	background: #ddd;
	border: 1px solid #ccc;
	box-shadow: 0 0 16px #ccc;
}
#contents > div{
	display: none;
	text-align: justify;
	padding: 10px 15px;
}
#contents > div:first-of-type{
	display: block;
}
footer{
	margin-top: 15px;
	font-size: 12px;
	color: #999;
	text-align: right;
}
footer .back{
	background: #258fb8;
	border-radius: 15px;
	color: #fff;
	float: left;
	font-weight: bold;
	padding: 5px 15px;
}
footer .back:hover{
	background: #2AA5D5;
	text-decoration: none;
}